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The interplay between local ecology, divergent selection and genetic drift in population divergence of a sexually antagonistic female trait

Karlsson, Kristina LU ; Svensson, Erik LU ; Bergsten, Johannes; Härdling, Roger LU and Hansson, Bengt LU (2014) In Evolution 68(7). p.1934-1946
Abstract
Genetically polymorphic species offer the possibility to study maintenance of genetic variation and the potential role for genetic drift in population divergence. Indirect inference of the selection regimes operating on polymorphic traits can be achieved by comparing population divergence in neutral genetic markers with population divergence in trait frequencies. Such an approach could further be combined with ecological data to better understand agents of selection. Here, we infer the selective regimes acting on a polymorphic mating trait in an insect group; the dorsal structures (either rough or smooth) of female diving beetles. Our recent work suggests that the rough structures have a sexually antagonistic function in reducing male... (More)
Genetically polymorphic species offer the possibility to study maintenance of genetic variation and the potential role for genetic drift in population divergence. Indirect inference of the selection regimes operating on polymorphic traits can be achieved by comparing population divergence in neutral genetic markers with population divergence in trait frequencies. Such an approach could further be combined with ecological data to better understand agents of selection. Here, we infer the selective regimes acting on a polymorphic mating trait in an insect group; the dorsal structures (either rough or smooth) of female diving beetles. Our recent work suggests that the rough structures have a sexually antagonistic function in reducing male mating attempts. For two species (Dytiscus lapponicus and Graphoderus zonatus), we could not reject genetic drift as an explanation for population divergence in morph frequencies, while for the third (Hygrotus impressopunctatus) we found that divergent selection pulls morph frequencies apart across populations. Furthermore, population morph frequencies in H. impressopunctatus were significantly related to local bioclimatic factors, providing an additional line of evidence for local adaptation in this species. These data therefore suggest that local ecological factors and sexual conflict interact over larger spatial scales to shape population divergence in the polymorphism. This article is protected by copyright. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Evolution
volume
68
issue
7
pages
1934 - 1946
publisher
Wiley-Blackwell
external identifiers
  • pmid:24635214
  • wos:000339052000008
  • scopus:84903536852
ISSN
1558-5646
DOI
10.1111/evo.12408
project
CAnMove
BECC
language
English
LU publication?
yes
id
53d47bb1-b137-4e62-872f-d61cb88f7d30 (old id 4383142)
date added to LUP
2014-04-25 10:03:25
date last changed
2017-01-01 04:10:57
@article{53d47bb1-b137-4e62-872f-d61cb88f7d30,
  abstract     = {Genetically polymorphic species offer the possibility to study maintenance of genetic variation and the potential role for genetic drift in population divergence. Indirect inference of the selection regimes operating on polymorphic traits can be achieved by comparing population divergence in neutral genetic markers with population divergence in trait frequencies. Such an approach could further be combined with ecological data to better understand agents of selection. Here, we infer the selective regimes acting on a polymorphic mating trait in an insect group; the dorsal structures (either rough or smooth) of female diving beetles. Our recent work suggests that the rough structures have a sexually antagonistic function in reducing male mating attempts. For two species (Dytiscus lapponicus and Graphoderus zonatus), we could not reject genetic drift as an explanation for population divergence in morph frequencies, while for the third (Hygrotus impressopunctatus) we found that divergent selection pulls morph frequencies apart across populations. Furthermore, population morph frequencies in H. impressopunctatus were significantly related to local bioclimatic factors, providing an additional line of evidence for local adaptation in this species. These data therefore suggest that local ecological factors and sexual conflict interact over larger spatial scales to shape population divergence in the polymorphism. This article is protected by copyright. All rights reserved.},
  author       = {Karlsson, Kristina and Svensson, Erik and Bergsten, Johannes and Härdling, Roger and Hansson, Bengt},
  issn         = {1558-5646},
  language     = {eng},
  number       = {7},
  pages        = {1934--1946},
  publisher    = {Wiley-Blackwell},
  series       = {Evolution},
  title        = {The interplay between local ecology, divergent selection and genetic drift in population divergence of a sexually antagonistic female trait},
  url          = {http://dx.doi.org/10.1111/evo.12408},
  volume       = {68},
  year         = {2014},
}